Mode Switchover Strategy for Multi-port Energy Router Based on State Flow Diagram

2021 ◽  
Author(s):  
Jingwen Zheng ◽  
Zhiguo Wei ◽  
Zaixun Ling ◽  
Yu Guo ◽  
Ping Xiong ◽  
...  
Keyword(s):  
Flow Diagram ◽  
State Flow

scholarly journals Function modeling using the system state flow diagram

2017 ◽  
Vol 31 (4) ◽  
pp. 413-435 ◽  
Author(s):  
Unal Yildirim ◽  
Felician Campean ◽  
Huw Williams
Keyword(s):  
Case Studies ◽  
Critical Evaluation ◽  
Decomposition Analysis ◽  
Flow Diagram ◽  
System State ◽  
Modeling Framework ◽  
Industrial Case Study ◽  
Modeling And Analysis ◽  
State Flow ◽  
Function Decomposition

AbstractThis paper introduces a rigorous framework for function modeling of complex multidisciplinary systems based on the system state flow diagram (SSFD). The work addresses the need for a consistent methodology to support solution-neutral function-based system decomposition analysis, facilitating the design, modeling, and analysis of complex systems architectures. A rigorous basis for the SSFD is established by defining conventions for states and function definitions and a representation scheme, underpinned by a critical review of existing literature. A set of heuristics are introduced to support the function decomposition analysis and to facilitate the deployment of the methodology with strong practitioner guidelines. The SSFD heuristics extend the existing framework of Otto and Wood (2001) by introducing a conditional fork node heuristic, to facilitate analysis and aggregation of function models across multiple modes of operation of the system. The empirical validation of the SSFD function modeling framework is discussed in relation to its application to two case studies: a benchmark problem (glue gun) set for the engineering design community; and an industrial case study of an electric vehicle powertrain. Based on the evidence from the two case studies presented in the paper, a critical evaluation of the SSFD function modeling methodology is discussed based on the function benchmarking framework established by Summers et al. (2013), considering the representation, modeling, cognitive, and reasoning characteristics. The significance of this paper is that it establishes a rigorous reference framework for the SSFD function representation and a consistent methodology to guide the practitioner with its deployment, facilitating its impact to industrial practice.

An Interactive Minicomputer Program for the Indexing and Simulation of Electron Diffraction Patterns

1976 ◽  
Vol 34 ◽  
pp. 542-543
Author(s):  
R.P. Goehner ◽  
W.T. Hatfield ◽  
Prakash Rao
Keyword(s):  
Electron Diffraction ◽  
Real Time ◽  
Pattern Analysis ◽  
Flow Diagram ◽  
Hard Copy ◽  
Time Analysis ◽  
Real Time Analysis ◽  
Transmission Electron ◽  
One Step ◽  
Diffraction Patterns

Computer programs are now available in various laboratories for the indexing and simulation of transmission electron diffraction patterns. Although these programs address themselves to the solution of various aspects of the indexing and simulation process, the ultimate goal is to perform real time diffraction pattern analysis directly off of the imaging screen of the transmission electron microscope. The program to be described in this paper represents one step prior to real time analysis. It involves the combination of two programs, described in an earlier paper(l), into a single program for use on an interactive basis with a minicomputer. In our case, the minicomputer is an INTERDATA 70 equipped with a Tektronix 4010-1 graphical display terminal and hard copy unit.A simplified flow diagram of the combined program, written in Fortran IV, is shown in Figure 1. It consists of two programs INDEX and TEDP which index and simulate electron diffraction patterns respectively. The user has the option of choosing either the indexing or simulating aspects of the combined program.

Calibration 7" – Cutthroat Flume as New Size for Discharge Measurement at Free Flow Condition

2020 ◽  
Vol 38 (12A) ◽  
pp. 1783-1789
Author(s):  
Jaafar S. Matooq ◽  
Muna J. Ibraheem
Keyword(s):  
Steady State ◽  
Flow Condition ◽  
Laboratory Experiments ◽  
Free Flow ◽  
Experimental Program ◽  
Steady State Flow ◽  
Empirical Formulas ◽  
State Flow ◽  
Operation Conditions ◽  
Throat Width

 This paper aims to conduct a series of laboratory experiments in case of steady-state flow for the new size 7 ̋ throat width (not presented before) of the cutthroat flume. For this size, five different lengths were adopted 0.535, 0.46, 0.40, 0.325 and 0.27m these lengths were adopted based on the limitations of the available flume. The experimental program has been followed to investigate the hydraulic characteristic and introducing the calibrated formula for free flow application within the discharge ranged between 0.006 and 0.025 m3/s. The calibration result showed that, under suitable operation conditions, the suggested empirical formulas can accurately predict the values of discharge within an error ± 3%.

The Modular Forensic Handwriting Method - 2016 Version

2016 ◽  
Vol 26 ◽  
pp. 7-83 ◽  
Author(s):  
Bryan J. Found ◽  
Carolyne Bird
Keyword(s):  
Cognitive Processes ◽  
Practical Method ◽  
Flow Diagram ◽  
Advisory Group ◽  
Legal Professionals ◽  
Decision Points ◽  
Technological Advances ◽  
Written Form ◽  
The Government ◽  
General Aspects

Overview:   This document provides a summary of a practical method that can be used to compare handwriting (whether text-based or signatures) in the forensic environment. It is intended to serve as an approach to forensic handwriting examination for practitioners actively involved in casework, or for those interested in investigating general aspects of the practice of forensic handwriting examination (for example researchers, academics and legal professionals). The method proposed does not cover in detail all aspects of the examination of handwriting. It does, however, form the framework of forensic handwriting methodology in the government environment in Australia and New Zealand as represented by the Document Examination Specialist Advisory Group (DocSAG). It is noted from the outset that handwriting is examined using complex human perceptual and cognitive processes that can be difficult to accurately and validly describe in written form since, for the most part, these processes are hidden. What is presented here is the agreed general approach that DocSAG practitioners use in the majority of the comparisons that they carry out. The method is based around a flow diagram which structures the comparison process and provides the reader with a guide as to the significant landmark stages commonly worked through in practical handwriting examinations. Where decision points occur within the course of the method flow diagram a series of modules have been developed which describe the nature of the decision under consideration and address relevant theoretical and practical issues. Each module is, as far as is practical, independent of other modules in the method. This assists in facilitating changes in the process over time that may result from theoretical, practical or technological advances in the field. Purchase Volume 26 - Special Issue - $40

APLIKASI AYATUL AHKAM BERBASIS WEB

2017 ◽  
Vol 3 (2) ◽  
pp. 94-100
Author(s):  
Muhammad Noor ◽  
Ayu Masykurinnisa
Keyword(s):  
Data Flow ◽  
Flow Diagram ◽  
Data Flow Diagram ◽  
Entity Relationship ◽  
Entity Relationship Diagram

Hukum Islam merupakan seperangkat norma atau peraturan yang bersumber dari Allah SWT dan Nabi Muhammad SAW untuk mengatur tingkah laku manusia di tengah-tengah masyarakat. Aktifitas yang kian padat menjadikan sebagian orang memiliki tingkat mobilitas yang tinggi. Terkadang hal yang tidak menjadi prioritas namun suatu keharusan bagi umat muslim terlalaikan, diantaranya yaitu mengenal dan menguasai hukum Islam dengan baik dan benar menjadi terabaikan bahkan terlupakan. Faktor penyebabnya adalah terbatasnya informasi, waktu maupun media untuk belajar, untuk itu dibutuhkan suatu aplikasi yang dapat memudahkan masyarakat khususnya umat muslim untuk mempelajari hukum Islam dengan lebih efektif dan efisien. Aplikasi Ayatul Ahkam Berbasis Web dirancang dengan menggunakan data flow diagram (DFD) dan penyimpanan data menggunakan database MySQL. Rancangan database menggunakan entity relationship diagram (ERD), conceptual diagram modelling (CDM), physical diagram modelling (PDM) dan menggunakan bahasa pemrograman hypertext preprocessor (PHP) serta menggunakan algoritma stemming Porter untuk pencarian. Metode dalam pembangunan menggunakan metode prototipe.   Kata Kunci : Ayatul Ahkam, Website   

Penerapan Skala Likert dan Skala Dikotomi Pada Kuesioner Online

2019 ◽  
Vol 5 (2) ◽  
pp. 128-137
Author(s):  
Viktor Handrianus Pranatawijaya ◽  
Widiatry Widiatry ◽  
Ressa Priskila ◽  
Putu Bagus Adidyana Anugrah Putra
Keyword(s):  
Data Flow ◽  
Flow Diagram ◽  
Data Flow Diagram ◽  
Analysis Design ◽  
Entity Relationship ◽  
Entity Relationship Diagram

Proses pengumpulan data dalam penelitian survey merupakan hal yang sangat penting. Penelitian berbasis survey membutuhkan instrumen pengumpulan data berupa kuesioner. Selama ini peneliti atau surveyor melakukan pengumpulan data secara manual yaitu dengan  mencetak kuesioner dan menyebarkannya dengan mendatangi satu persatu responden. Hal ini memakan waktu yang lama dan biaya yang besar sehingga menjadi masalah utama yang dihadapi dalam pengumpulan data dengan kuesioner. Untuk mengatasi masalah tersebut dibutuhkan suatu aplikasi yang dapat membantu surveyor dalam melakukan survey secara online. Penelitian ini bertujuan untuk  merancang dan membangun aplikasi kuesioner online berbasis web dengan meggunakan metode waterfall dengan tahapan analysis, design, implementation, testing dan maintanance. Pemodelan sistem dan basis data meggunakan Data Flow Diagram (DFD) dan Entity Relationship Diagram (ERD). Bahasa Pemrograman yang digunakan yaitu, HTML, PHP, CSS, Java Script, dan untuk databasenya menggunakan MySQL. Skala pengukuran yang digunakan dalam perancangan kuesioner menggunakan skala likert dan skala guttman. Aplikasi ini memiliki 3 hak akses yaitu, admin, surveyor dan pengunjung/responden. Dengan adanya aplikasi diharapkan ini proses pengumpulan data dengan kuesioner dapat lebih efektif dan efisien.

A Graphical Method for Storage Coefficient Determination from Quasi-Steady State Flow Data

1996 ◽  
Vol 27 (4) ◽  
pp. 247-254 ◽  
Author(s):  
Zekâi Şen
Keyword(s):  
Steady State ◽  
Graphical Method ◽  
Pumping Test ◽  
Quasi Steady State ◽  
Flow Data ◽  
Steady State Flow ◽  
Storage Coefficient ◽  
State Flow ◽  
Aquifer Test

A simple, approximate but practical graphical method is proposed for estimating the storage coefficient independently from the transmissivity value, provided that quasi-steady state flow data are available from a pumping test. In the past, quasi-steady state flow distance-drawdown data have been used for the determination of transmissivity only. The method is applicable to confined and leaky aquifers. The application of the method has been performed for various aquifer test data available in the groundwater literature. The results are within the practical limits of approximation compared with the unsteady state flow solutions.

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